Active type soil-absorbed hydrocarbon sampling drill tool

Abstract

The invention provides an active type soil-absorbed hydrocarbon sampling drill tool which comprises a drill tool main body; the drill tool main body comprises a drill rod adopting a hollow structure,a drill bit movably connected with the drill rod and adopting a hollow structure, a handle connected with the drill rod in a T-shaped manner and positioned on a side opposite to the drill bit, an absorbed hydrocarbon sampling device, a waterproof and breathable component, a sampling pipe and an air sampling device; collecting holes are formed in a tail end, opposite to the drill rod, of the drillbit; the absorbed hydrocarbon sampling device comprises a filter element positioned inside the hollow drill bit and connected with the collecting holes; the waterproof and breathable component positioned inside the hollow drill bit and connected with the filter element; the sampling pipe is positioned inside the hollow drill rod, one end of the sampling pipe is connected with the waterproof and breathable component, and the other end is connected with a collecting device; and the air sampling device is arranged in the air and connected with the collecting device through a pipe. According to the drill tool provided by the invention, the absorbed hydrocarbon sampling device is integrated with the drill tool, and various parameters can be monitored at the same time, and so that the integration level and the degree of automation are high.

Description

technical field [0001] The invention relates to an active soil adsorption hydrocarbon sampling drilling tool, which belongs to the field of oil and gas geochemical exploration. Background technique [0002] The adsorption silk method is to use an adsorbent to adsorb trace gaseous hydrocarbons in the formation, and then use chromatography-mass spectrometry to detect hydrocarbons through thermal desorption. For landmark geochemical exploration research, more information on hydrocarbon components can be obtained, and geochemical anomalies can be accurately described. The actual exploration application in many areas shows that it is one of the effective geochemical exploration methods. [0003] There are two main types of adsorption silk method sampling: passive adsorption and active equilibrium. The main methods of passive adsorption are on-site wire embedding and canning balance. It takes a long time to balance, and the on-site wire embedding has difficulty in construction a...

AI Technical Summary

Problems solved by technology

[0004] However, in the process of sampling soil adsorbed hydrocarbons, it is necessary to use a drilling tool to drill a hole first, then connect the gas line with an adsorption tube and extend it into the borehole with an atmospheric sampler for active suction sampling, which has the following defects: cumbersome operation, poor sampling A variety of tools need to be carried; because the hole is put into the adsorption tube for sampling after the hole is drilled, the sealing of the hole cannot be guaranteed, and at the same time, the atmosphere is brought into the hole, the stability is poor, and the in-situ hydrocarbon information cannot be reflected; moreover If it is a humid area, the sampling tool is likely to make the adsorbent damp and invalid without waterproof measures

Images